SARA-U2 - Compact smallest UMTS/HSPA/GSM cellular modules

u-blox SARA-U2 UMTS/HSPA/GSM cellular modules provide efficient and cost effective high-speed mobile connectivity in an ultra-small LGA form factor.

SARA-U2 UMTS/HSPA modules provide efficient and costeffective high-speed mobile connectivity in an ultra-small LGA form factor. The SARA-U2 series offers seamless drop-in migration from GSM (SARA-G3 modules) and CDMA (LISA-C modules) as well as easy migration to LTE (TOBY-L modules).

SARA-U2 modules feature HSPA data-rates of 7.2 Mb/s (downlink) and 5.76 Mb/s (uplink). The modules have an extended operating temperature range of -40 to +85 C, low power consumption, and a rich feature set including dualstack IPv4 / IPv6.

The SARA-U2 series is ideal for a wide range of industrial and consumer applications, such as connected navigation systems, mobile-internet devices, security and surveillance systems, eCall, fleet management, metering, anti-theft systems, and other automotive applications.

SARA-U2 modules provide a fully integrated interface to u-blox satellite positioning chips and modules to support telematics applications.

The SARA-U2 series includes variants supporting a combination of global bands and band combinations for North America and Europe/Africa/Asia. There is also a cost-saving UMTS-only variant for North America.

An extensive set of national regulatory and operator certificates is available. RIL software for Android and Embedded Windows is available free of charge.


  • UMTS/HSPA/GSM module in ultra‑small LGA package
  • Also available in cost‑effective UMTS/HSPA‑only versions
  • Seamless drop‑in migration from SARA‑G GSM/GPRS modules
  • Extended temperature range: -40 to +85°C
  • Low idle mode current
  • Simple integration of u‑blox GNSS and A‑GNSS
  • CellLocate®: (indoor) positioning based on cellular network

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

Parameters Specifications

850/1900 and 900/2100 MHz

800/850/900/1900/2100 MHz

3GPP Release 7

5.76 Mb/s uplink, 7.2 Mb/s downlink


GSM 850/1900 and 900/1800 MHz

Quad-band, 850/1900, 900/1800 MHz


Class 12, CS1-CS4 - up to 85.6 kb/s

EDGE Class 12, MCS1-9 - up to 236.8 kb/s

GSM max 9.6 kb/s

UMTS max 64 kb/s


MT/MO PDU / Text mode



Echo cancellation and noise reduction

Software features

Dual stack IPv4/IPv6

Embedded TCP/IP, UDP/IP

HTTP/FTP/SSL (Secure Socket Layer)

SSL TLS 1.2 (for embedded TCP/IP)

Ethernet over USB

eSIM and Bearer-Independent-Protocol

Network Jamming detection
GNSS interfaces

Direct access to u-blox GNSS via SARA

AssistNow software for fastest GNSS Time-to-First-Fix

CellLocate® & Hybrid Positioning

Emergency calling

E911 (USA)

European eCall, eMLPP


ODIS feature for AT&T (only for SARA-U201)

Protect network from excessive signaling traffic

Firmware update

Via UART and USB


9 GPIO, controllable via AT commands

(U)SIM Supports 1.8 V and 3 V, SIM toolkit


1 USB 2.0 (high-speed, 480 Mb/s)

1 DDC (I²C) for GNSS and other I²C slaves


1 digital

Electrical data
Power supply 3.3 - 4.4 V
Power consumption

Power Off: 65 µA

Idle (2G): 0.9 mA

Idle: (3G) 0.9 mA


215 mA (850/900MHz)

140 mA (1800/1900MHz)

HSDPA: 580 mA

HSPA: 460 mA

Certifications & approvals
SARA-U201 ATEX, PTCRB, GCF, FCC (USA), ISED¹ (Canada), RED² (CE), RCM (Australia), SRC/CCC (China), NCC (Taiwan), Giteki (Japan), Anatel (Brazil), AT&T, Rogers, NTT DoCoMo (planned)
SARA-U260/U280 PTCRB, GCF, ISED¹ , FCC, AT&T, Rogers
SARA-U270 ATEX, GCF, RED² , PTCRB, CCC, NCC (Taiwan), RCM (Australia), KCC (Korea), KT (Korea), SKT (Korea)

¹ ISED, formerly known as IC

² RED, formerly known as R&TTE

Environmental data, quality & reliability
Operating temperature -40°C to +85ºC (extended range)
RoHS compliant (lead-free)
Qualification according to ISO 16750
Manufactured in ISO/TS 16949 certified production sites



96 pin LGA: 16.0 x 26.0 x 3.0 mm, < 3 g


Click here for the u-blox cellular modules linecard.

Part Number Description

Reel Size

SARA-U201 HSPA/GSM modules for global coverage 250

HSPA/GSM module for Americas HSPA B2, B5, GSM B2, B5



HSPA/GSM module for Europe/Asia HSPA B1, B8, GSM B3, B8

SARA-U270 ATEX HSPA/GSM module for Europe/Asia HSPA B1, B8, GSM B3, B8 250

HSPA module for Americas HSPA B2, B5


EVK-U201SARA Evaluation kit specifically for SARA-U201

Evaluation Kit for SARA-U260

EVK-U27 Evaluation Kit for SARA-U270
RIL software for


Embedded Windows 6.x, 7.x

Windows Mobile 6.5

USB driver

Embedded Windows 6.x, 7.x

Windows XP, Vista, 7, 8, 10

Windows Mobile 6.5

u‑blox EVK‑U2x evaluation kits provide simple, flexible and ready‑to‑use environments for evaluating u‑blox' LISA‑U and SARA‑U series W‑CDMA cellular modules, as well as for designing and testing cellular and GNSS applications. The kits are user‑friendly, and have both USB and RS232 interfaces for development, testing and tracing. The kits come with a built‑in u‑blox GNSS receiver module, giving designers the flexibility to either test GSM/GPRS functionality alone or to integrate it with u‑blox GNSS technology.

For evaluating Assisted‑GNSS (A‑GNSS), a u‑blox AssistNow A‑GNSS client is embedded in the firmware stack, providing users with the option of integrating and testing our license‑free A‑GNSS solutions. The kits are to be used with a Windows PC via USB interface, and require an activated SIM card (not included). USB drivers can be downloaded from u‑blox website.


Kit includes:

  • Evaluation board with LISA‑U2 or SARA‑U W‑CDMA module and u‑blox GNSS module
  • USB cable
  • Cellular (UMTS/GSM) antenna
  • GNSS antenna
  • Power adapter
  • Audio headset
  • Quick start card

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Last updated: 17 November 2017